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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define momentum.
💡 Hint: Think about what factors affect how fast something is moving.
Question 2
Easy
What is the difference between elastic and inelastic collisions?
💡 Hint: Consider whether energy is conserved in each case.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does momentum depend on?
- Mass and speed
- Volume and density
- Distance and time
💡 Hint: Think of the factors influencing how fast an object moves.
Question 2
In an elastic collision, is kinetic energy conserved?
- True
- False
💡 Hint: Recall the characteristics of elastic collisions.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Two balls of masses 3 kg and 5 kg collide elastically, with the 3 kg ball moving at 4 m/s and the lighter ball at rest. Find their velocities after collision.
💡 Hint: Set up simultaneous equations using p1i = p1f + p2f and K1i + K2i = K1f + K2f.
Question 2
A car (mass = 800 kg) collides inelastically with a stationary truck (mass = 1200 kg). If the car's speed before collision is 15 m/s, what is their common speed after collision?
💡 Hint: Remember that conservation of momentum must hold.
Challenge and get performance evaluation